EP1746619A1 - Auxiliaire de serrage - Google Patents

Auxiliaire de serrage Download PDF

Info

Publication number
EP1746619A1
EP1746619A1 EP06019161A EP06019161A EP1746619A1 EP 1746619 A1 EP1746619 A1 EP 1746619A1 EP 06019161 A EP06019161 A EP 06019161A EP 06019161 A EP06019161 A EP 06019161A EP 1746619 A1 EP1746619 A1 EP 1746619A1
Authority
EP
European Patent Office
Prior art keywords
box
frame
opening
housing
clamping screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06019161A
Other languages
German (de)
English (en)
Other versions
EP1746619B1 (fr
Inventor
Gerhard Schuh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Industries Austria GmbH
Original Assignee
Moeller Gebaudeautomation GmbH
Eaton GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Moeller Gebaudeautomation GmbH, Eaton GmbH filed Critical Moeller Gebaudeautomation GmbH
Publication of EP1746619A1 publication Critical patent/EP1746619A1/fr
Application granted granted Critical
Publication of EP1746619B1 publication Critical patent/EP1746619B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut

Definitions

  • the invention relates to a lift clamp for installation in a housing of an electrical device, such as a circuit breaker, comprising a rectangular frame and a rectangular box, the upper portion between the upper portion and the lower portion of the frame is arranged, whereby the box slidably in the frame further comprising a clamping screw freely rotatably guided through an aperture formed in the upper frame portion and threaded into an upper portion of the box, and a tab fixed to the box extending from the lower portion of the box extends into the space lying below the box and parallel to the plane of an adjacent to the lift clamp opening in the housing.
  • Such lift clamps with fixed to the box lobes or shutters are for example from the EP 0 559 585 A and the US 5 580 285 A known.
  • a disadvantage of the EP 0 559 585 A proves that the tab shown there is integrally formed with the metallic box and thus does not provide an electrically insulating protection.
  • the US 5 580 285 A whereas, in a particular embodiment, shows a removable shutter. However, this shutter is attached only with small hooks on the box, so that the resulting low composite surface ensures no secure connection.
  • the object of the invention is therefore to securely connect a cloth to cover the lower receiving space with the box. According to the invention this is achieved in that a parallel to the lower box section extending plate is formed on the lobes, by means of which the flap is connected to the box. The section of the opening below the lower box section is covered thereby, thus avoiding erroneous insertion of ladders under the lower box section.
  • the plate allows a relatively large-area contact with the box, thus ensuring a secure connection.
  • a mounting plate running both normal to this and normal to the flap is integrally formed, which is firmly connected to a side wall of the box.
  • a pin is formed on the mounting plate, which engages in an incorporated into the box side wall opening.
  • the shear bolt in addition to its main function of providing resistance to displacement of the box, it can fulfill the auxiliary function of holding mounting plates, plates and lobes in the housing.
  • mounting plates, plates and lobes can be mechanically inserted into the lower shell.
  • the circuit breaker shown in Figure 1 comprises two, as so-called. "Lift terminals" running screw 1, by means of which lead wires and the comb-like terminal lugs of busbar systems can be connected to the circuit breaker.
  • the circuit breaker further comprises an overload trip element 2 and a short-circuit tripping device 3, next to a switching mechanism 4, which can move the movable contact 5 from a closed position in which the movable contact 5 is applied to the fixed contact 8 in the open position shown in Figure 1 ,
  • the current to be monitored flows through in this circuit breaker, starting from the right screw 1, first the overload trip element 2, passes through a movable Lciterseil 6 and the switching bridge 7 to the movable contact 5, then via the fixed contact 8 to the short tripping device 3 and finally to the second terminal.
  • the switching mechanism 4 can be actuated both by the short-circuit tripping device 3 and by the overload tripping element 2.
  • the short-circuit tripping device 3 is formed in a conventional manner by a magnetic coil with a movable armature, which beats anchor at correspondingly high short-circuit currents on the switching bridge 7 of the switching mechanism 4.
  • the overload release element 1 consists of a bimetallic strip which is heated by the current to be monitored. The first end 21 of the bimetallic strip is fixed in the housing of the circuit breaker, the second end 22 is held freely movable. The bending thereof caused by the heating of the bimetal therefore leads to a movement of the second end 22 in the direction of the arrow 23.
  • the contact carrier 7 in the closed position of the movable contact 5 is provided accessible from the outside, manually operable lever 11.
  • the housing of the circuit breaker is in a conventional manner in two parts, consisting of the respectively apparent in the drawing figures lower shell 12 and not shown in the drawings, with respect to its structural design to the lower shell 12 mirror image of the upper shell executed.
  • the present invention relates to the lift clamps 1 and is not limited to the use of these lift clamps 1 in circuit breakers.
  • a line protection switch or the lower shell 12 of such was shown, because herein is a particularly preferred application of the lift clamp 1.
  • it can nevertheless be used in electrical appliances of any type, that is to say, for example, in the case of a residual current circuit breaker, arrester isolating switch, staircase automaton, etc.
  • the lift clamp 1 has, as previously known screw terminals of this type, a frame 14 which, viewed in the position shown in FIG. 1, is rectangular. It usually consists of a one-piece, three times 90 ° angled copper strip. This frame 14 is immovably held in the housing, which can be achieved for example by clamping between projections on the lower shell inner wall.
  • Second main component of a lift clamp 1 is the box 15, which is also frame-like (see also Fig.2). The box 15 is rotated by 90 ° relative to the frame 14 and hung in this, ie, the upper portion 150 of the box 15 is located between the upper portion 140 and the lower portion 141 of the frame 14.
  • the box 15 is thus slidably guided in the frame 14 ,
  • the third main component of the lift clamp is the clamping screw 16.
  • the upper portion 140 of the frame 14 has an opening 142 through which the clamping screw 16 is freely rotatably guided.
  • a thread 152 is incorporated, in which the clamping screw 16 engages. If the clamping screw 16 is rotated in the closing direction (ie clockwise when the clamping screw 16 is designed as a right-hand screw), the box 15 is lifted, ie moved in the direction of the upper frame section 140. This shift is due to the fact that the clamping screw 16 with its foot-side end on the lower frame portion 141 or with its head 160 on the upper frame section 140 comes to rest.
  • openings 19 and 20 are provided in the housing at the level of these spaces.
  • a tab 24 is fixed to the box 15, which extends normal to the lower portion 151 of the box 15 and extends away from it, that is, in the lying below the box 15 space.
  • This flap 24 thus extends parallel to the plane of the opening 19 and is disposed immediately adjacent thereto. Due to its connection with the box 15, the flap 24 is displaced together with the box 15 and thus covers the lying below the box 15 portion of the opening 19. A through this opening 19 inserted therethrough wire can only in between the lower frame portion 151th and lower box portion 141 lying space 17 are used, an above-described erroneous insertion of a wire under the box 15 is reliably avoided.
  • the tab 24 may be constructed arbitrarily: it could for example be made in one piece with the box 15, for example by being bent from the same conductive sheet metal strip as this box 15. But it can also be a separate from the box 15 and with the box 15 firmly connected-for example, welded or glued-component.
  • a plate 25 running parallel to the lower box section 151 is formed on the tabs 24, via which tab the flap 24 is connected to the box 15.
  • the plate 25 may be glued or welded to the lower box section 151, for example.
  • the connection between the plate 25 and the lower box section 151 is achieved by a mounting plate 26, which is formed on the plate 25 and extends normally both to this plate 25 and to the flap 24.
  • This mounting plate 26 is fixedly connected to a side wall of the box 15, which could be realized again by gluing or welding of these two parts.
  • a preferred used and therefore also shown in Figures 1 to 4 variant for fixing the mounting plate 26 on the box 15 provides a pin 27, which is integrally formed on the mounting plate 26.
  • an opening 28 is incorporated, in which this pin 27 engages, whereby a positive fastening of the mounting plate 26 and thus of the tab 24 is achieved on the box 15.
  • the lift clamp 1 in question has two points, namely the spaces 17 and 18, for clamping electrical lines, normally in the lower space 17 wires and in the upper space 18, the terminal lug of a busbar system is used.
  • the clamping screw 16 is not only rotated, but also pressed down with the screwdriver used for this purpose. This leads in lift clamps, which have only the previously discussed design features, that the screw head 16 is always pressed against the upper frame portion 141 and the rotation of the clamping screw 16 only in a downward displacement of the box 15, ie in an opening of the room 17 is implemented.
  • the resulting static friction between the box 15 and the frame 14 or the housing parts initially prevents the above-discussed displacement of the box 15 relative to the frame 14, bringing the clamping screw 16 when rotating in the opening direction Box 15 and frame 14 out or when turning in the closing direction in box 15 and frame 14 moves into it.
  • the (friction) resistance is dimensioned so that it can be overcome, for example by exerting a pressure on the screw head 160. This allows that upon rotation of the clamping screw 16 - if desired - immediately the lower space 17 can be opened.
  • a rib 30, into which a bore 31 is embedded, is located above the screw head 160.
  • the screw head 160 comes to rest on the rib 30. If the clamping screw 16 now continues to be rotated in the opening direction, the box 15 is pressed downwards, since the clamping screw 16 can no longer move upwards. The resistance is overcome and moved the box 15 down. The resistance can be realized, as shown in FIG. 5, by means of a spring 32, which pretensions the box 15 in the direction of the frame 14.
  • a shear pin 33 is provided which is secured in the housing.
  • the shear pin 33 is positively connected to the box 15 when it is in the position shown in Figure 1 and Figure 6. This can be achieved, for example, by engaging the shear pin 33 in an aperture machined into the box sidewall, or by placing the shear pin 33 just below the lower box portion 151, as shown in FIG.
  • a shear pin 33 is provided, which, however, is only indirectly connected to the box 15:
  • a tab 24 is provided, on which a small plate 25 is formed, with which the mounting plate 26 is integrally formed.
  • This mounting plate 26 is slidably mounted in a, recessed into the housing rectangular guide groove 34 in the direction of displacement of the box 15 parallel direction.
  • an integrally formed on the mounting plate 26 pin 27 is provided, which engages in an incorporated in the box side wall opening 28.
  • the shear pin 33 is integrally formed on the bottom of this guide groove 34.
  • the mounting plate 26 has an opening 35, in which the shear pin 33rd engages (see Fig.2,3).
  • the shear pin 33 is indirectly, namely connected by the intermediary of the mounting plate 26 and the pin 27 with the box 15.
  • the shearing strength of this pin 27 is correspondingly greater than that of the shear pin 33.
  • the shear pin 33 has in this embodiment the secondary function that he holds the mounting plate 26 and with this the flap 24 during assembly of the switch, ie when inserting the individual components in the housing lower shell, at the correct position.
  • the mounting plate 26 with molded plates 25 and tabs 24 can thus be used by machine in the lower shell, frame 14 and box 15 of the lift clamps 1 can then be placed without difficulty on the mounting plate 26.

Landscapes

  • Patch Boards (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
  • Finger-Pressure Massage (AREA)
  • Road Signs Or Road Markings (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Prostheses (AREA)
  • Liquid Crystal Substances (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Clamps And Clips (AREA)
  • Vehicle Body Suspensions (AREA)
  • Magnetic Heads (AREA)
  • Trip Switchboards (AREA)
EP06019161A 2001-03-20 2002-03-15 Auxiliaire de serrage Expired - Lifetime EP1746619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0044401A AT410613B (de) 2001-03-20 2001-03-20 Liftklemme
EP02706504A EP1389341B8 (fr) 2001-03-20 2002-03-15 Auxiliaire de serrage

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP02706504A Division EP1389341B8 (fr) 2001-03-20 2002-03-15 Auxiliaire de serrage
EP02706504.4 Division 2002-03-15

Publications (2)

Publication Number Publication Date
EP1746619A1 true EP1746619A1 (fr) 2007-01-24
EP1746619B1 EP1746619B1 (fr) 2011-09-07

Family

ID=3674289

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06019161A Expired - Lifetime EP1746619B1 (fr) 2001-03-20 2002-03-15 Auxiliaire de serrage
EP02706504A Expired - Lifetime EP1389341B8 (fr) 2001-03-20 2002-03-15 Auxiliaire de serrage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02706504A Expired - Lifetime EP1389341B8 (fr) 2001-03-20 2002-03-15 Auxiliaire de serrage

Country Status (13)

Country Link
EP (2) EP1746619B1 (fr)
CN (2) CN100423159C (fr)
AT (3) AT410613B (fr)
AU (1) AU2002240690A1 (fr)
CZ (1) CZ20032391A3 (fr)
DE (1) DE50210642D1 (fr)
DK (1) DK1746619T3 (fr)
EA (1) EA004608B1 (fr)
ES (2) ES2372759T3 (fr)
HK (2) HK1063384A1 (fr)
MY (1) MY138816A (fr)
TN (1) TNSN03067A1 (fr)
WO (1) WO2002075889A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983541A1 (fr) * 2007-04-19 2008-10-22 Abb Ag Borne à vis et appareil d'installation
WO2012039030A1 (fr) * 2010-09-22 2012-03-29 パナソニック電工電路株式会社 Dispositif de commutation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500453B8 (de) * 2004-01-27 2007-02-15 Moeller Gebaeudeautomation Kg Liftklemme
DE102005039181B4 (de) * 2005-08-18 2007-05-10 Siemens Ag Anschlusssystem mit formschlüssiger Anschlussleitung
SE0502128L (sv) * 2005-09-26 2006-12-19 Abb Ab Anslutningsanordning vid en skena
FR2917243B1 (fr) * 2007-06-11 2009-07-10 Schneider Electric Ind Sas Borne de raccordement electrique et appareil de protection electrique comportant une telle borne
DE102007032841A1 (de) * 2007-07-12 2009-01-15 Abb Ag Installationsschaltgerät mit Isolierstoffgehäuse
CN102881528B (zh) * 2012-09-25 2015-03-18 上海诺雅克电气有限公司 一种断路器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539977A (en) * 1967-11-13 1970-11-10 Oskar Woertz Inh H & O Woertz Electrical terminal
DE8312142U1 (de) * 1983-04-25 1983-11-03 Murrelektronik GmbH, 7155 Oppenweiler Schraubanschlußklemme
EP0559585A1 (fr) * 1992-03-02 1993-09-08 Schneider Electric Sa Borne de raccordement à étrier d'épaisseur variable et à écrou serti
EP0687032A1 (fr) * 1994-06-06 1995-12-13 Schneider Electric Sa Borne de raccordement pour un appareillage électrique
EP0772256A2 (fr) * 1995-11-03 1997-05-07 Legrand Appareil électrique à bornes de raccordement protégées par un diaphragme à fixation par des ailes
WO1998053470A1 (fr) * 1997-05-20 1998-11-26 Gewiss S.P.A. Borne electrique a protection contre la decharge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7105713U (de) * 1971-02-16 1971-08-05 Siemens Ag Elektrisches Installationsgerät
DE3421875A1 (de) * 1984-06-13 1985-12-19 Brown, Boveri & Cie Ag, 6800 Mannheim Anschlussklemme
DE3633854A1 (de) * 1986-10-04 1988-04-07 Bbc Brown Boveri & Cie Schraubklemme
DE8702835U1 (de) * 1987-02-25 1988-03-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anschlußklemme für elektrische Installationsgeräte
DE9302571U1 (de) * 1993-02-23 1993-07-08 Heinrich Kopp AG, 8756 Kahl Mehrfachklemme für Installationsgeräte
DE19513281A1 (de) * 1995-04-07 1996-10-10 Kopp Heinrich Ag Kombianschlußklemme
AT406207B (de) * 1997-09-30 2000-03-27 Felten & Guilleaume Ag Oester Steckbarer überspannungsableiter
DE19905442A1 (de) * 1999-02-10 2000-08-17 Abb Patent Gmbh Anschlußklemmenanordnung für anzuschließende Draht- und Sammelschienenflachbandleiter für ein elektrisches Schaltgerät

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539977A (en) * 1967-11-13 1970-11-10 Oskar Woertz Inh H & O Woertz Electrical terminal
DE8312142U1 (de) * 1983-04-25 1983-11-03 Murrelektronik GmbH, 7155 Oppenweiler Schraubanschlußklemme
EP0559585A1 (fr) * 1992-03-02 1993-09-08 Schneider Electric Sa Borne de raccordement à étrier d'épaisseur variable et à écrou serti
EP0687032A1 (fr) * 1994-06-06 1995-12-13 Schneider Electric Sa Borne de raccordement pour un appareillage électrique
EP0772256A2 (fr) * 1995-11-03 1997-05-07 Legrand Appareil électrique à bornes de raccordement protégées par un diaphragme à fixation par des ailes
WO1998053470A1 (fr) * 1997-05-20 1998-11-26 Gewiss S.P.A. Borne electrique a protection contre la decharge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983541A1 (fr) * 2007-04-19 2008-10-22 Abb Ag Borne à vis et appareil d'installation
WO2012039030A1 (fr) * 2010-09-22 2012-03-29 パナソニック電工電路株式会社 Dispositif de commutation
JP5629326B2 (ja) * 2010-09-22 2014-11-19 パナソニック株式会社 開閉装置

Also Published As

Publication number Publication date
DE50210642D1 (de) 2007-09-20
AU2002240690A1 (en) 2002-10-03
CN100423159C (zh) 2008-10-01
CN1520601A (zh) 2004-08-11
ATA4442001A (de) 2002-10-15
EP1746619B1 (fr) 2011-09-07
MY138816A (en) 2009-07-31
ES2290273T3 (es) 2008-02-16
HK1063384A1 (en) 2004-12-24
TNSN03067A1 (en) 2005-04-08
CN1252772C (zh) 2006-04-19
AT410613B (de) 2003-06-25
CZ20032391A3 (cs) 2004-02-18
EP1389341B1 (fr) 2007-08-08
CN1758402A (zh) 2006-04-12
EP1389341B8 (fr) 2007-11-07
DK1746619T3 (da) 2011-12-12
EP1389341A2 (fr) 2004-02-18
EA200301032A1 (ru) 2004-02-26
ATE523892T1 (de) 2011-09-15
ATE369615T1 (de) 2007-08-15
WO2002075889A2 (fr) 2002-09-26
HK1100240A1 (en) 2007-09-14
WO2002075889A3 (fr) 2003-12-11
EA004608B1 (ru) 2004-06-24
ES2372759T3 (es) 2012-01-26

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